A protective cover plate mainly comprises a substrate, a printing layer, an ultraviolet layer and an adhesive layer, wherein the printing layer is disposed at a side surface of the substrate. The printing layer is formed with at least a pattern. The pattern protrudes the substrate to form a segmental difference surface. The ultraviolet layer is disposed to another side surface of the printing layer relative to the substrate, and the ultraviolet layer is disposed with at least a filling portion. The filling portion can be relatively located near the pattern to fill the segmental difference surface of the pattern to flat the surface. A side of the ultraviolet layer is disposed with the adhesive layer. The plate can be adhered to the article by utilizing the adhesive layer. The protective cover plate does not only have flat appearance but also achieves dustproof and dirt prevention efficacies.